Thank you so much for sharing your experience with your arm and hand! I truly hope that Work Comp issue regarding your therapy is soon resolved. Work Comp did come through for most of my therapy [ I say most since the balked at a one year pass to wrap up my exercise as we are in negotiations to finish the case] and I had hundreds of sessions over the past six years.
Since part of my case was multiple carpal tunnel releases [I have no cervical SCS for the arm] hand therapy was prescribed and allowed to help regain strength especially in my right arm in which the nerve had died to a significant extent. They will probably come through with therapy post SCS implant for the arm, especially if both your doc and attorney are pushing for action.
Here;s hope and prayer that all will be well!
Mark56